of steven spielberg coming up with a theme song for "e.t." 30 years ago. ♪ >> tonight in a "showbiz" flashback, we are going to reveal this footage just revealed of a young spielberg coming up with the soundtrack to this iconic film. >>> plus, we have your fefrt very first look at the footage of "ironman 3" coming up. rogaine? well, i'll admit it. i was skeptical at first. but after awhile even my girlfriend noticed a difference. [ male announcer ] rogaine is proven to help stop hair loss. and for 85% of guys, it regrew hair. save up to 42% now at rogaine.com. it regrew hair. ♪ (train horn) vo: wherever our trains go, the economy comes to life. norfolk southern. one line, infinite possibilities. >> you'll have to walk from here. e.t.! ♪ >> wow, every time i see it, one of the most iconic scenes of all time with one of the most iconic sound tracks of all time. we have, we have a look back at how steven spielberg brought together the sights and sounds of e.t. tonight, it is an extraordinary look inside how steven spielberg put together the theme music for the screen classic "e.t."